Results here with dual preview Stopwatch are somewhat inconsistent with Nat's. However, the Stopwatch may not be suitable to judge this, as it's splitting seconds into seemingly finer increments than the attached countdown. (Right-click on it to download).
Incrementing to where :01 first appears in both preview windows - the clip cursor time is shown as 1:083; the sequence time is 1:082.
Incrementing to where :02 first appears in both - clip cursor time is 2.040; for the sequence 2:039. Slight inconsistency there, yet perhaps normal.
That said, if clip preview is parked just prior to a second change - 00 - and sequence is parked just after - 01 - then snapshots of either window are accurate.
As a practical example a fast-action clip was ended midway, then a sequence snap was taken of its final frame and added to the end of the clip. The freeze was flawless. Had the snap been of any other frame, there would have been a jump cut.
A.mahoney24, please upload a clip where the issue occurs and someone will check it out.
Might be worth forwarding this thread to the devs who could explain the anomalies.
Stopwatch.mp4